Hi,
I have had the same problem and it seems that there is a conflict in jquery. Basicaly you should open wp-video-gallery.php in your main plugin folder and remove this line (211):
wp_register_script('my_jquery', 'http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js', false, '1.7.2');
It worked for me.
Regards
